/Engine/Plugins/Experimental/ColorCorrectRegions/Source/ColorCorrectRegions/Public/ColorCorrectRegionsStencilManager.h
Runs over all actors assigned to the selected Region and makes sure that Stencil Ids match the ones assigned to it.
static void CheckAssignedActorsValidity ( [AColorCorrectRegion](API\Plugins\ColorCorrectRegions\AColorCorrectRegion) * Region )